2665140050065 has 16 divisors (see below), whose sum is σ = 3200479454592. Its totient is φ = 2130571657984.

The previous prime is 2665140050059. The next prime is 2665140050071. The reversal of 2665140050065 is 5600500415662.

It is an interprime number because it is at equal distance from previous prime (2665140050059) and next prime (2665140050071).

It is a cyclic number.

It is not a de Polignac number, because 2665140050065 - 2³¹ = 2662992566417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42667737 + ... + 42730153.

It is an arithmetic number, because the mean of its divisors is an integer number (200029965912).

Almost surely, 2^{2665140050065} is an apocalyptic number.

It is an amenable number.

2665140050065 is a deficient number, since it is larger than the sum of its proper divisors (535339404527).

2665140050065 is a wasteful number, since it uses less digits than its factorization.

2665140050065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68456.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 2665140050065 in words is "two trillion, six hundred sixty-five billion, one hundred forty million, fifty thousand, sixty-five".